Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://infrive.ru/uplcv?utm_term=event+partnership+proposal+pdf PDF link annotation

  • http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d271d19c8c0---77929608801.pdfIn PDF document text
  • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d55bd6e764e---3831850983.pdfIn PDF document text
  • https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/2090ea30f7c0d78248d80556d4b2e558/5146620182.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab04c27df21---gudanedisomo.pdfIn PDF document text
  • https://stepweystudy.com/ckfinder/userfiles/files/1199692530.pdfIn PDF document text
  • https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/c12fbb7ffde0656df80939e1ce7a2770/86155371562.pdfIn PDF document text
  • https://www.nexidia.it/wp-content/plugins/super-forms/uploads/php/files/0e779134be4d02b8255d63e257e5b565/funof.pdfIn PDF document text
  • http://au-coeur-du-temps.com/userfiles/file/74358746708.pdfIn PDF document text
  • https://stehovani-ostrava.cz/static_pages_files/file/67949517884.pdfIn PDF document text
  • http://payassistinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099d0509ec96---pigifawifozumegixegezekux.pdfIn PDF document text
  • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c942502df0a---gurubuzo.pdfIn PDF document text
  • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/3c28e79b6a57b8dedd4945299fac1376/xosizilibijulokagewor.pdfIn PDF document text
  • http://vitalchurchesinstitute.com/files/file/58405183664.pdfIn PDF document text
  • http://www.yankey.com.tw/demo/public/editor/ckfinder/upload/user_upload/files/31070156745.pdfIn PDF document text
  • http://schokobrunnen.com/idata/93577922981.pdfIn PDF document text
  • https://vrindaindia.com/php/joseph/uploads/file/pumozuvevejikifewinerem.pdfIn PDF document text
  • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f4ab9de050---91620046818.pdfIn PDF document text
  • http://serdceprirody.ru/userfiles/file/roruduwutobupikesu.pdfIn PDF document text
  • http://sehs67.com/clients/e/e0/e078d4d0076166a7bb489ca3b3a583ab/File/97156335065.pdfIn PDF document text
  • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160c53d0aa409a---19672206187.pdfIn PDF document text
  • http://mistral-paints.cz/userfiles/files/miwusobi.pdfIn PDF document text
  • http://www.darvidproperty.com/news/file/lavasenanumofizedipevi.pdfIn PDF document text
  • http://kcde.kr/userfiles/file/nodubigomuvokazabuzatibu.pdfIn PDF document text
  • https://betibg.eu/webroot/img/files/51850241192.pdfIn PDF document text
  • http://cnmrobotics.com/files/files/67847313975.pdfIn PDF document text
  • http://miamiokclassof65.com/clients/d/db/dbefc63a503cf3d3a4f9fb61678ecc08/File/ximaturelefubedoze.pdfIn PDF document text
  • http://xn--e42bt3l.net/upfile/files/37092922478.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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